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A 26-year-old business executive complained of a dull pain (heartburn) behind the sternum. The painwas postprandial (occurred after meals) and disappeared within a few minutes to an hour. It was oftenassociated with belching and often was worse on lying down or on exertion after heavy meals.Sometimes it radiated to the back, jaws, shoulders, and down the inner aspects of the arms, simulatingangina pectoris. X-rays revealed a small portion of the stomach above the diaphragm, and anendoscopic biopsy revealed mucosal inflammation. Esophageal manometry (determining pressures atthe lower esophageal sphincter, LES) revealed decreased LES pressure. Esophageal pH monitoringshowed reflux of gastric contents into the esophagus and provided direct evidence of gastroesophagealreflux. Recommended treatment for this individual is avoidance of strong stimulants of gastric acidsecretion (e.g., coffee, alcohol) and avoidance of certain drugs (e.g., anticholinergics), and specific foods(fats, chocolates, whole milk, and orange juice), and smoking, all of which reduce LES competence.Elevation of the head of the bed by about six inches is also recommended. Suggested treatments alsoinclude the use of cholinergic agonists (e.g., bethanechol) and the use of histamine (H2) antagonists(cimetidine)
1. What is the disorder of this 26-year-old business executive? Explain.
The RNAi knockdown experiments show that the nucleoporins typically promote or inhibit transcription in the NARs? Briefly explain.
q1. a summer-squash plant that produces disc-shaped fruit is crossed with summer-squash plant that produces long fruit.
Why does the removal of the extremity of coleoptile prohibit plant growth?
Which of these structures are most likely to be a component of both chytrid zoospores and motile animal cells?
Volution and Natural Selection Lab
Testing for Proteins-How did your a priori predictions compare to your actual results in Table 2? If there were any inconsistencies, explain why this occurred
Describe the disease anorexia nervosa. How is it treated? What is Crohn's disease? Describe the symptoms of this disease
write a 600-900 word essay addressing all of the following questions1. why are some fruits sweet and some sour while
One way to regulate an enzyme is for a modulator or regulator bind to a site on the enzyme, causing a conformational change so that the substrate can no longer fit into the active site.
Summarize the article in one or more paragraphs, using your own words. Be sure to identify the article using an in-text citation in the body of the paper, as well as a reference in the reference section.
diagram and describe how countercurrent exchange mechanism work use specify examples for 1. gas exchange 2.thermoregulation 3. osmoregulation and 4. reducing the evaporative water lose when breathing ( 1 example for each)
A blue-eyed man marries a brown-eyed woman; and they have six children, all brown-eyed. What is the most likely genotype of the father?
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